ACH payments

ACH Payments: Authorization, Settlement, Returns, and Business Use Cases

ACH payments move funds between bank accounts through the ACH Network and are commonly used for bill payments, payroll, vendor payments, and recurring transfers.

ACH payment flow

Role	Plain-Language Meaning
Originator	The party initiating the payment or debit with authorization.
ODFI	The financial institution that sends ACH entries into the network.
ACH operator	The operator that sorts and settles ACH files.
RDFI	The receiving financial institution.
Receiver	The account holder receiving or being debited.

ACH evaluation questions

Question	Why It Matters
Is authorization documented?	Authorization supports compliance and dispute handling.
What return codes are common?	Returns reveal account, authorization, or timing problems.
What settlement timing applies?	Cash flow depends on standard or same-day ACH windows.
How is account validation handled?	Validation helps reduce returns and fraud.

Frequently asked questions

Is ACH the same as card processing?

No. ACH moves bank-account payments; card processing uses card networks and issuing banks.

Can ACH be same day?

Same Day ACH exists within defined network rules and processing windows.

What causes ACH returns?

Invalid account information, insufficient funds, authorization disputes, closed accounts, and other issues can create returns.